Metal mold machining equipment

The invention relates to the field of mold machining equipment, and discloses metal mold machining equipment which comprises a machining base, a polishing equipment box arranged above the machining base and a trapezoidal conveying belt assembled on the machining base, and the horizontal part of the conveying belt is flush with the upper end face of the machining base. A plurality of opening grooves are formed in the conveying belt at equal intervals, and to-be-machined molds are placed in the opening grooves; pressing and holding mechanisms are arranged at the two ends of the open groove correspondingly, and an electromagnetic driving mechanism is arranged on the machining base. The pressing and holding mechanism comprises a supporting seat, a jacking and pressing block and a compression spring, the jacking and pressing block is a permanent magnet, and linear Hall sensors are arranged on the electromagnetic driving mechanisms. According to the machining equipment, assembly line work of polishing machining of